EXFO CableSHARK P3, User Manual, Page: 243 / 321

CableSHARK
P3
User Guide
231
15.3 Noise Test
The Noise function allows a user to measure RMS noise on the circuit under test.
To measure Noise, select the VF TESTS option from the CABLE TESTS pop-up menu. Select RECEIVE
TONE from the VF TESTS sub-menu. To continue, press RUN/STOP.
SEND TONE
600 OHMS
C NOTCHED
dBrnC
EDIT /
SELECT
MAIN
MENU
Test Type :
Term Impedance:
Noise Filter:
Measurement Units:
E F
CHG
NOISE
F
IGURE
15.3A - S
ETTING
U
P
NOISE
TEST
The VF TEST menu has the following configuration option.
TEST TYPE:
Select NOISE
TERM IMP:
600 ohms (or 100, 150 ohms if your unit does not have 600 ohms installed).
Noise Filter
Allows user to select from NONE, C-Message, C-Notched, 3 kHz Flat, 15 kHz
Flat, 50 kbit, and IEEE 743 D Filter. For ITU, Psophometric and P-Notched are
available.
Measurement
Units:
Allows user to select from displaying results in dBm or dBrnC.